Espaço sideral
coloque esse codigo entre: <Head> e </Head>
<SCRIPT language=JavaScript> <!-- Starfield - Kurt Grigg - http://www.btinternet.com/~kurt.grigg/javascript n=20;// Number of stars! n4=(document.layers); ie=(document.all); for (i=0; i < n; i++){ if (n4) document.write("<layer name='stars"+i+"' top=0 left=0 bgcolor=#FFFFFF width=1 height=1></layer>"); else document.write('<div id="stars'+i+'" style="position:absolute;width:1px;height:1px;background:#00FF00;font-size:1px">.</div>'); } h=0; w=0; cy=0; cx=0; y=new Array(); x=new Array(); iy=new Array(); ix=new Array(); dir=new Array(); v=new Array(); ds=new Array(); ac=new Array(); for (i=0; i < n; i++){ iy[i]=Math.random()*h; ix[i]=Math.random()*w; y[i]=iy[i]; x[i]=ix[i]; v[i]=1.3; ac[i]=0; ds[i]=0; } function fly(){ h=(ie)?document.body.clientHeight:window.innerHeight; w=(ie)?document.body.clientWidth:window.innerWidth; sy=(ie)?document.body.scrollTop:window.pageYOffset; sx=(ie)?document.body.scrollLeft:window.pageXOffset; cy=Math.floor((h/2)); cx=Math.floor((w/2)); for (i=0; i < n; i++){ divs=(n4)?document.layers["stars"+i]:document.getElementById("stars"+i).style; ay=y[i]-cy; ax=x[i]-cx; dir[i]=Math.atan2(ay,ax)*180/Math.PI; v[i]+=ac[i]; v[i]+=(v[i]/10); if (v[i] > 0.4 && v[i] < 0.5){ if (!n4){divs.fontSize=2;divs.height=2;divs.width=2} else{divs.clip.height=2;divs.clip.width=2} } if (v[i] > 10){ if (!n4){divs.fontSize=2;divs.height=2;divs.width=2;} else{divs.clip.height=2;divs.clip.width=2;} } if (v[i] > 20){ if (!n4){divs.fontSize=3;divs.height=3;divs.width=3} else{divs.clip.height=3;divs.clip.width=3} } if (v[i] > 30){ if (!n4){divs.fontSize=5;divs.height=5;divs.width=5} else{divs.clip.height=5;divs.clip.width=5} } y[i]+=v[i]*Math.sin(dir[i]*Math.PI/180); x[i]+=v[i]*Math.cos(dir[i]*Math.PI/180); if (y[i] < 0 || y[i] > h-Math.round(v[i]) || x[i] < 0 || x[i] > w-Math.round(v[i])){ iy[i]=Math.random()*h; ix[i]=Math.random()*w; y[i]=iy[i]; x[i]=ix[i]; dx=cy-y[i]; dy=cx-x[i]; ds[i]=Math.sqrt(dy*dy+dx*dx); ac[i]+=(-(ds[i]*ds[i])+(160000))/(100000000);//? v[i]=Math.floor(ds[i]/40); if (!n4){divs.fontSize=1;divs.height=1;divs.width=1} else{divs.clip.height=1;divs.clip.width=1} } divs.top=y[i]+sy; divs.left=x[i]+sx; } setTimeout('fly()',10); } fly(); // --> </SCRIPT>